<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--点击提交,就可以发送POST请求了,然后就会跳转到所指定的路径-->
    <form action="GetPostParameter1" method="POST">
        <input type="text" name="userId"> userId<br>
        <input type="text" name="classId"> classId
        <input type="submit" value="提交">
    </form>
    <p>如果你点提交,表单数据就会被发送到名为GetPostParameter1的页面</p>
</body>
</html>